Potts Run Streambank Stabilization/Fish Habitat Design Project Final Report Completed by Trout Unlimited September 2015

Transcription

1 Potts Run Streambank Stabilization/Fish Habitat Design Project Final Report Completed by Trout Unlimited September 205 Background Trout Unlimited (TU) completed a coldwater conservation plan for Potts Run in the fall of 203. One of the recommendations from this plan was to: Identify sources of sediment in the watershed and work with project partners including municipalities, industry (timber, gas, mining), and private landowners to implement streambank stabilization projects, dirt and gravel roads projects, and other best management practices that will reduce sources of sediment in the watershed. For this reason, TU applied for a 204 Coldwater Heritage Partnership (CHP) planning grant to identify areas of the watershed that were serving as sources of sedimentation and devise design plans to tackle priority areas. Project Summary In accordance with the grant requirements, a public meeting was held on June 9, 204 at which time TU staff went over the results of the watershed assessment and recommendations of the coldwater conservation plan with those in attendance. A few private landowners and one of the Knox Township supervisors were present and provided information regarding potential areas which could be serving as sources of excess sediment in the stream. Following the meeting, TU staff conducted field reconnaissance and identified several sources of sediment in the watershed including a former beaver impoundment that has been drained causing a new channel to form, several dirt and gravel roads in both Jordan and Knox Townships, and three areas of streambank erosion. The three areas of streambank erosion are all located on the main stem of Potts Run in Knox Township. One is downstream of Kellytown Road near the mouth (PR_BS_0), the second is located in a forested area upstream of the village of Boardman (PR_BS_02), and the third is located just upstream of the village of Carnwath (PR_BS_03) (Figure ). The streambank stabilization projects were chosen to pursue immediately since they could be implemented quickly and would both reduce sediment and provide instream habitat for trout and other fish. Additional site visits were conducted to take measurements and get a feel for stream dynamics in those areas. TU staff experienced in the design of streambank stabilization/fish habitat improvement projects then completed site-specific design plans and materials lists for each project (attached). The projects were designed using PA Fish and Boat Commission-approved structures and were reviewed by personnel from their habitat division. The design plans were presented at the Knox Township supervisors meeting on June 2, 205 and were met with favorably by those present. Funding from both the Foundation for Pennsylvania Watersheds and a 205 CHP implementation grant have been secured for implementation of two of the three identified projects (Kellytown and Carnwath). Construction is slated to begin in October 205.

2 Figure : Potts Run Streambank Stabilization and Habitat Improvement Project # PR_BS_0 # PR_BS_02 # PR_BS_03 E Legend # Streambank Stabilization Project Sites Streams Potts Run Watershed 2 Miles 2

3 Old Railroad Grade Device 8: Multi-log Vane Deflectors 240' Device 9-28: Root-Wad Deflectors 2' Device 29-3: Multi-log Vane Deflectors Device -7: Multi-log Vane Deflectors 342' 3' 390' 42' 8' Area Of Disturbance:.3 Acres 20' Device 4-5: Single-log Vane Deflectors Site End Birch Tree Old Railroad Grade 240' 500' Clearfield Creek Site Start Flow 90' Red Oak 0' 24' 72' Device -3: Multi-log Vane Deflectors Impacts 25 Ft Linear 892 Sq Ft Potts Run, Clearfield County PR_BS_0 Project Coordinator: Phil Thomas Drawn By: Phil Thomas ALL SIZES APPROXIMATE, FIT IN FIELD N 3

4 Project List Potts Run, Clearfield County PS_BS_0 Device: Single Log Vane Deflector Device#: 4 5 Quantity Per One Device Total Devices Total For 2 Devices Logs: 25 x 8-0 Dia. 2 Rebar Pins (5/8 ): 4' 5 0 Stone (8-24 Dia.) tons 3 2 N0 Geo-Fabric (SF) x ' Cap Nails (lbs) /8 /4 Device: Multi Log Vane Deflector Device#: 3, 8, 29 3 Quantity Per One Device Total Devices Total For 7 Devices Logs: 25 x 8-0 Dia. 3 2 Rebar Pins (5/8 ): 2' 8 5 Rebar Pins (5/8 ): 4' Stone (8-24 Dia.) tons 5 35 N0 Geo-Fabric (SF) x ' Cap Nails (lbs) /8 7/8 Device: Root Wad Deflector Device#: 7, 9 28 Quantity Per One Device 5 Dia. Root ball w/0 stem attached Rebar Pins (5/8 ): 4' 2 Stone (8-24 Dia.) tons 3.5 Total Devices 22 Total For 22 Devices Total for all Structures Logs: 25 x 8-0 Dia. 5 Dia. Root ball w/0 stem attached Rebar Pins (5/8 ): 2' Rebar Pins (5/8 ): 4' Stone (8-24 Dia.) tons N0 Geo-Fabric (SF) x5 2' Cap Nails (lbs) /8 4

5 Old Mining Road Access Point Device 2: Section Modified Mud Sill 20' Red Maple 9' 0' Area Of Disturbance:.7 Acres Flow Site Start 229' Device : Multi-Log Vane Deflector Site End 300' 20' 238' Device : Single Log Vane Deflector 200' Device 3-5: Multi-Log Vane Deflectors Impacts 295 Ft Linear 90 Sq Ft Potts Run, Clearfield County PR_BS_02 Project Coordinator: Phil Thomas pthomas@tu.org Drawn By: Phil Thomas ALL SIZES APPROXIMATE, FIT IN FIELD N 5

6 Project List Project ID: PR_BS_02 Device: Multi-Log Vane Logs: 25' x 8-0'' Dia. 3 2 Rebar Pins (5/8"): 2' 24 Rebar Pins (5/8"): 4' 4 Stone (2-24" Dia.) tons Fabric (SF) x0 sheet Seed 5 20 Mulch 3 2 Device: Single-Log Vane Logs: 25' x 8-0'' Dia. Rebar Pins (5/8"): 4' Stone (2-24" Dia.) tons 3 3 Seed 5 5 Mulch 3 3 Device: Mud Sill (3 sections, 20' for 0' total) Face Logs: 20' x 8-0'' Dia. 0 Sill Logs: 0' x 8-0'' Dia. 0 Rebar Pins (5/8"): 2' 2 0 Rebar Pins (5/8"): 4' 2 0 Stone (2-24" Dia.) tons 20 0 Seed 20 0 Mulch 5 0 Device: Modified Mud Sill (3 sections, 20' for 0' total) Face Logs: 20' x 8-0'' Dia. 24 Sill Logs: 0' x 8-0'' Dia Ext. Sill Log: 25' x 8-0'' Dia. 4 Rebar Pins (5/8"): 2' Rebar Pins (5/8"): 4' 5 0 Stone (2-24" Dia.) tons Seed Mulch 5 0

7 Device: Log Framed Stone Deflector Logs: 25' x 8-0'' Dia. 2 0 Rebar Pins (5/8"): 4' 8 0 Stone (2-24" Dia.) tons 5 0 Seed 5 0 Mulch 3 0 Device: Log Framed Cross Vane Logs: 30' x 8-0'' Dia. 4 0 Rebar Pins (5/8"): 4' 0 Stone (2-24" Dia.) tons 30 0 Seed 0 0 Mulch 0 Device: Log Toe Protection Logs: 0' x 8-0'' Dia. 0 Stone (2-24" Dia.) tons 0 Rebar Pins (5/8"): 4' 5 0 Device: Root Wad Deflector 5' Root Ball w/ 0' Stem 0 Stone (2-24" Dia.) tons 3 0 Seed 5 0 Mulch 3 0 Device: Water Jack, Downstream Wing: Stone, 5' wide Logs: 25' x 8-0'' Dia. 5 0 Hemlock Planks: " x 8" x 8' 50 0 Rebar Pins (5/8"): 2' 0 0 Rebar Pins (5/8"): 4' 8 0 Stone (2-24" Dia.) tons 20 0 Stone (-8" Dia.) tons 0 Plastic (SF) x0 sheet Seed 5 0 Mulch 3 0 7

8 Total all structures Logs: 30' x 8-0'' Dia. 0 Logs: 25' x 8-0'' Dia. 7 Logs: 20' x 8-0'' Dia. 24 Logs: 0' x 8-0'' Dia. 20 Hemlock Planks: " x 8" x 8' 0 5' Root Ball w/ 0' Stem 0 Rebar Pins (5/8"): 2' 72 Rebar Pins (5/8"): 4' 30 Stone (2-24" Dia.) tons 23 Stone (-8" Dia.) tons 0 Fabric (SF) x0 sheet 240 Seed 05 Mulch 75 8

9 Site End Old Baseball Field Staging Area Area Of Disturbance:.42 Acres Device -4: Multi Log Vane Deflectors 40.8 N W 0' 30' 0' 0' Site Start Rock Dam 90' Device 5: Log Faced Stone Deflector Hemlock 70' 50' Device -7: Single Log Vane Deflectors 240' 270' Device 0: Multi Log Vane Deflector Sand Bar Existing Rood-Wad Flow 20' 370' 400' 350' Device 9: Modified Mud Sill 330' Device 8: Multi Log Vane Deflector 30' Impacts 200 Ft Linear 855 Sq Ft 9 Potts Run, Clearfield County PR_BS_03 Project Coordinator: Phil Thomas pthomas@tu.org Drawn By: Phil Thomas ALL SIZES APPROXIMATE, FIT IN FIELD Not to Scale N

10 Project List Potts Run, Clearfield County PR_BS_03 Device: Single Log Vane Deflector Device#:, 7 Quantity Per One Device Total Devices Total For 2 Devices Logs: 20 x 8-0 Dia. 2 Rebar Pins (5/8 ): 4' 5 0 Stone (-24 Dia.) tons 3 2 N0 Geo-Fabric (SF) 'x5' ' Cap Nails (lbs) /8 /4 Device: Multi Log Vane Deflector Device#: 4, 8, 0 Quantity Per One Device Total Devices Total For Devices Logs: 20 x 8-0 Dia. 3 8 Rebar Pins (5/8 ): 2' 8 48 Rebar Pins (5/8 ): 4' 8 48 Stone (-24 Dia.) tons 5 30 N0 Geo-Fabric (SF) 'x5' ' Cap Nails (lbs) /8 3/4 Device: Log Faced Stone Deflector Device#: 5 Quantity Per One Device Face Logs: 20 x 8-0 Dia. 3 Sill Logs: 0 x 0-2 Dia. Rebar Pins (5/8 ): 2' 4 Rebar Pins (5/8 ): 4' Stone (-24 Dia.) tons 0 Device: Modified Mud Sill Device#: 9 Quantity Per One Device Face Logs: 20 x 8-0 Dia. 4 Sill Logs: 0 x 0-2 Dia. 4 Rebar Pins (5/8 ): 2' Rebar Pins (5/8 ): 4' 2 Stone (-24 Dia.) tons 0 Total Devices Total For Devices Total Devices Total For Devices

11 Total for all Structures Logs: 20 x 8-0 Dia. Rebar Pins (5/8 ): 2' Rebar Pins (5/8 ): 4' Stone (-24 Dia.) tons N0 Geo-Fabric (SF) x5 2' Cap Nails (lbs)